robertleeplummerjr’s gists

robertleeplummerjr / proof-of-32-bits.js

Created March 26, 2019 22:48

	const gl = canvas.getContext('webgl2', {
	alpha: false,
	depth: false,
	antialias: false
	});
	const glVariable0 = gl.createProgram();
	const glVariable1 = gl.createShader(gl.VERTEX_SHADER);
	gl.shaderSource(glVariable1, `attribute vec4 vPosition;
	attribute vec2 texCoord0;
	varying vec2 texCoord;

robertleeplummerjr / chunk.js

Created March 26, 2019 17:16

	let chunkSize = 15;
	let inputWidth = 25;
	let image.dims = {
	w: 1920,
	h: 1080
	}

	const myFunc = gpu.createKernel(
	function(imageTexture, offsetY, offsetX) {
	return imageTexture[this.thread.y + offsetY][this.thread.x + offsetX];

robertleeplummerjr / trying-for-float-getting-infinity.js

Created March 26, 2019 12:34

	const gl = canvas.getContext('webgl2', {
	alpha: false,
	depth: false,
	antialias: false
	});
	const glVariable0 = gl.getParameter(gl.RENDERER);
	const glVariables1 = gl.getExtension('EXT_color_buffer_float');
	const glVariables2 = gl.getExtension('OES_texture_float_linear');
	const glVariables3 = gl.getExtension('EXT_color_buffer_float');
	gl.enable(gl.SCISSOR_TEST);

robertleeplummerjr / kind-of-working-hashmap.js

Created March 19, 2019 18:27

	const { GPU } = require('gpu.js');

	const gpu = new GPU();
	gpu.addFunction(function hash3D(x, y, z) {
	const ix = (Math.floor(x/this.output.x)) + 1e5,
	iy = (Math.floor(y/this.output.x)) + 1e5,
	iz = (Math.floor(z/this.output.x)) + 1e5;
	return ((ix * 10223) + (iy * 12919) + (iz * 16127)) % 1e6;
	});

robertleeplummerjr / parse-glsl-argument-types.js

Created March 13, 2019 14:42

	/**
	* A highly readable very forgiving micro-parser for a glsl function that gets argument types
	* @param {String} source
	* @returns {{types: String[], names: String[]}}
	*/
	function parseGLSLArgumentTypes(source) {
	const types = [];
	const names = [];
	const states = [];
	const isStartingVariableName = /^[a-zA-Z_]/;

Last active March 9, 2019 13:31

	<html>
	<head></head>
	<body>
	<canvas></canvas>
	<script>
	var canvas = document.querySelector('canvas');
	var gl = canvas.getContext('webgl');
	const extension0 = gl.getExtension("WEBGL_draw_buffers");
	gl.getSupportedExtensions();
	gl.getError();

Last active March 9, 2019 13:09

	<html>
	<head></head>
	<body>
	<canvas></canvas>
	<script>
	var canvas = document.querySelector('canvas');
	var gl = canvas.getContext('webgl');
	const extension0 = gl.getExtension("WEBGL_draw_buffers");
	gl.getSupportedExtensions();
	gl.getError();

robertleeplummerjr / flattened-extensions_webgl-draw-buffers.js

Created March 8, 2019 18:08

	const gl = require("./index")(64, 64);
	const extension0 = gl.getExtension("WEBGL_draw_buffers");
	gl.getSupportedExtensions();
	gl.getError();
	gl.getParameter(extension0.MAX_COLOR_ATTACHMENTS_WEBGL);
	gl.getError();
	gl.getError();
	gl.getParameter(extension0.MAX_DRAW_BUFFERS_WEBGL);
	gl.getError();
	gl.getParameter(extension0.MAX_COLOR_ATTACHMENTS_WEBGL);

robertleeplummerjr / extensions_webgl-draw-buffers.js

Created March 2, 2019 12:49

	/eslint-disable /
	var _windowShim = require("../lib/shims/window-shim");
	var _documentShim = require("../lib/shims/document-shim");
	var _canvasShim = require("../lib/shims/canvas-shim");
	var _imageShim = require("../lib/shims/image-shim");
	var _rafShim = require("../lib/shims/raf-shim");
	var _RESOURCES = require("./resources.json");

	function extensions_webgl_draw_buffers(ENVIRONMENT) {
	var HTMLElement = function() {};

robertleeplummerjr / to-pixels.cc

Created February 24, 2019 22:06

	static GLubyte* toPixels(int width, int height) {
	GLubyte bytes[width * height * 4];
	(reinterpret_cast<PFNGLREADPIXELSPROC>(eglGetProcAddress("glReadPixels")))(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, bytes);

	std::ofstream file;
	file.open("test-google-angle.ppm");
	file << "P3\n";
	file << "# gl.ppm\n";
	file << width;
	file << " ";

Robert Plummer robertleeplummerjr